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Literature summary extracted from

  • Deschamps, P.; Haferkamp, I.; Dauvillee, D.; Haebel, S.; Steup, M.; Buleon, A.; Putaux, J.L.; Colleoni, C.; dHulst, C.; Plancke, C.; Gould, S.; Maier, U.; Neuhaus, H.E.; Ball, S.
    Nature of the periplastidial pathway of starch synthesis in the cryptophyte Guillardia theta (2006), Eukaryot. Cell, 5, 954-963.
    View publication on PubMedView publication on EuropePMC

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.4.1.242 2.7
-
 ADP-glucose 55°C, pH 6.5 Guillardia theta
2.4.1.242 3.8
-
 UDP-glucose 55°C, pH 6.5 Guillardia theta

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.4.1.242 UDP-glucose + (1,4-alpha-D-glucosyl)n Guillardia theta the granule-bound starch synthase from Guillardia theta is demonstrated to be responsible for the synthesis of long glucan chains. Guillardia theta utilizes a UDP-glucose-based pathway to synthesize starch UDP + (1,4-alpha-D-glucosyl)n+1
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.242 Guillardia theta
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.4.1.242
-
 Guillardia theta

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.242 ADP-glucose + (1,4-alpha-D-glucosyl)n the enzyme shows similar affinities for ADP and UDP-glucose, while the Vmax measured with UDP-glucose is twofold higher Guillardia theta ADP + (1,4-alpha-D-glucosyl)n+1
-
 ?
2.4.1.242 UDP-glucose + (1,4-alpha-D-glucosyl)n the granule-bound starch synthase from Guillardia theta is demonstrated to be responsible for the synthesis of long glucan chains. Guillardia theta utilizes a UDP-glucose-based pathway to synthesize starch Guillardia theta UDP + (1,4-alpha-D-glucosyl)n+1
-
 ?
2.4.1.242 UDP-glucose + (1,4-alpha-D-glucosyl)n the enzyme shows similar affinities for ADP and UDP-glucose, while the Vmax measured with UDP-glucose is twofold higher Guillardia theta UDP + (1,4-alpha-D-glucosyl)n+1
-
 ?

Synonyms

EC Number Synonyms Comment Organism
2.4.1.242 GBSS1
-
 Guillardia theta
2.4.1.242 granule-bound starch synthase 1
-
 Guillardia theta

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.4.1.242 55
-
-
 Guillardia theta

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.4.1.242 6.5
-
-
 Guillardia theta